0

Hi, I am a novice in programming and need help in my mortgage calculation program. I have the GUI set up all functioning good the only problem I have is the calculation portion that is not doing its job.
Can anyone please guide me how to correct my problem?

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.text.DecimalFormat;
import java.util.*;
import java.lang.*;
import java.text.NumberFormat;



public class week1 extends JFrame implements ActionListener
{


//declaring fields for GUI
JTextField mortgageAmountField, interestRateField, yearsTermField, monthlyPayField;JButton monthButton;
JFrame frame;
int buttonCount = 0;
DecimalFormat fmt = new DecimalFormat("0.00");


//assigning labels to the fields
JLabel mortgageAmountLabel = new JLabel("Mortgage Amount:");
JLabel interestRateLabel = new JLabel("Interest Rate:");
JLabel yearsTermLabel=new JLabel("Term (Years):");
JLabel monthlyPayLabel=new JLabel();



public week1()
{
//declaring the title of the program
frame = new JFrame("Mortgage Calculator - Greta Setian");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);


//declaring panels 1 and 2
JPanel Panel1 = new JPanel();
JPanel Panel2 = new JPanel();


//assigning buttons to the panels
Panel1.add(mortgageAmountLabel);
mortgageAmountField = new JTextField(15);
Panel1.add(mortgageAmountField);


Panel1.add(interestRateLabel);
interestRateField = new JTextField(5);
Panel1.add(interestRateField);


Panel1.add(yearsTermLabel);
yearsTermField = new JTextField(5);
Panel1.add(yearsTermField);


Panel2.add(monthlyPayLabel);
monthlyPayField = new JTextField(5);
Panel2.add(monthlyPayField);


monthButton = new JButton("Reset");
monthButton.addActionListener(this);
Panel2.add(monthButton);


monthButton = new JButton("Exit");
monthButton.addActionListener(this);
Panel2.add(monthButton);


//setting up the quit button for the user to calculate the program
monthButton = new JButton("Calculate");
monthButton.addActionListener(this);
Panel2.add(monthButton);



//indicating the border layout of our frames
frame.getContentPane().add(Panel1, BorderLayout.NORTH);
frame.getContentPane().add(Panel2, BorderLayout.SOUTH);
frame.setSize(700, 100);
frame.setResizable(true);



frame.show();



}


//activating the action event so the user's input is taken
public void actionPerformed(ActionEvent event){
if(event.getSource() == monthButton)


}
public void MortgageCalcj1() {



double ortgageAmount=Double.parseDouble(mortgageAmountField.getText()); //O= Original amount of loan-hard coded
double interestRate=Double.parseDouble(interestRateField.getText()); //I=Interest rate-hard coded
double yearsTerm=Double.parseDouble(yearsTermField.getText()); //T=Term of loan- hard coded
double monthlyPay = (mortgageAmount*(interestRate / 12))/ (1 - (Math.pow(1 / (1 + (interestRate / 12)), yearsTerm)));


MortgageCalcj1 = new MortgageCalcj1(this);


//display the monthly payment
monthlyPayLabel.setText("Your Monthly Payment will be: " + fmt.format(monthlyPay));


//continue with button actionlistener
buttonCount++;
}


}



public static void main(String[] args)
{
week1 cal = new week1();
}


}
//end of programming

Edited by Nick Evan: Fixed formatting

2
Contributors
1
Reply
2
Views
12 Years
Discussion Span
Last Post by nanosani
0

Hey !
Can you indent your code properly and place it in code tags ... this will make your code readable.... now its very hard to read it.

This topic has been dead for over six months. Start a new discussion instead.
Have something to contribute to this discussion? Please be thoughtful, detailed and courteous, and be sure to adhere to our posting rules.